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Finding the Fourth Proportional to 568,908.55, 853,487.44 and 213,922.57

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Solution

The fourth proportional to 568,908.55, 853,487.44 and 213,922.57 is: 320,930.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,908.55 : 853,487.44 = 213,922.57 : x
  2. Step 2: Convert to fraction form
    568,908.55/853,487.44 = 213,922.57/x
  3. Step 3: Cross multiply
    568,908.55x = 853,487.44 × 213,922.57
  4. Step 4: Simplify right side
    568,908.55x = 182,580,225,559.29
  5. Step 5: Solve for x
    x = 182,580,225,559.29/568,908.55
  6. Step 6: Final answer
    x = 320,930.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.